Finding the Fourth Proportional to 80,238.53, 120,354.15 and 30,314.79

Step by Step Solution

1. Step 1: Write the proportion equation
   80,238.53 : 120,354.15 = 30,314.79 : x
2. Step 2: Convert to fraction form
   80,238.53/120,354.15 = 30,314.79/x
3. Step 3: Cross multiply
   80,238.53x = 120,354.15 × 30,314.79
4. Step 4: Simplify right side
   80,238.53x = 3,648,510,896.56
5. Step 5: Solve for x
   x = 3,648,510,896.56/80,238.53
6. Step 6: Final answer
   x = 45,470.81